Well, a frequent theme is the exploration of family. Harry has always been an orphan, and suddenly finding out he's Tom Riddle's son would completely redefine his understanding of family. There could also be themes related to the battle between good and evil within himself. Since he has the blood of a dark wizard, he may have to constantly fight against his darker instincts. Also, the theme of acceptance by the wizarding world could be present, as they may be hesitant to accept someone with such a dark heritage.
The most common theme is probably the re - imagining of the prophecy. In the original story, the prophecy about Harry and Voldemort was a central part. In these fanfictions, the prophecy would have to be completely re - thought. Another theme could be the impact on Harry's friendships. His friends like Ron and Hermione might react very differently to him if they knew he was Tom Riddle's son. And finally, there could be a theme of self - discovery, as Harry delves deeper into his newfound heritage and what it means for his future.
One common theme is identity crisis. Harry has to deal with being the son of the most evil wizard. Another is power struggle. Since he's related to Voldemort, there are often plots about whether he'll inherit dark powers or not.
Family and heritage play a big role. She has to deal with the fact that her father is one of the most feared wizards in history. There's often a theme of secrecy as well. She might have to keep her true identity a secret from her friends. Also, power is a theme. As Tom Riddle was powerful, she may inherit some of that power and has to decide how to use it, for good or evil.
A prevalent theme is the struggle against the dark side. Given his father's history, he may constantly face the temptation of dark magic. He might also face prejudice from others who know his father's deeds. This could lead to a theme of isolation and his journey to overcome it, to prove that he is not like his father.
Another theme is redemption. Some fanfictions try to show Tom Riddle's possible redemption through his relationship with fem Harry. They might explore how her presence and influence could change his path towards the dark side. It's an interesting concept as it gives a new perspective on the character of Tom Riddle.
A common theme is mystery. Since Tom Riddle is such a mysterious character, fanfictions often explore the secrets of his past that Iris Black might be related to. Harry Potter, being the main character in the original series, is usually the one to unravel these mysteries.
A major theme is the manipulation of destiny. Fanfics often question whether their fates are set in stone or if they can change the course of events. Another common theme is the exploration of the wizarding world's politics and how Harry and Tom fit into it. Their different ideologies can clash or, in some cases, find common ground. There's also the theme of self - discovery, as both characters learn more about themselves through their interactions with each other.
One common theme is the battle between good and evil. Since Harry represents good and Tom Riddle is the symbol of evil in the original series, fanfics often explore this dichotomy further. For example, how Harry tries to prevent Riddle from doing more harm.
One common theme is redemption. The idea that Harry could be Tom's father might lead to a path of redemption for Tom Riddle. Another theme could be alternate history. Since this is a big change to the original story, it often explores how different the wizarding world would be.
There might be. Fanfiction writers often come up with creative and unexpected relationships. However, this concept is quite a departure from the original story. It would completely change the dynamics of Harry's struggle against Voldemort (Tom Riddle). It could lead to some very different interpretations of Harry's powers and his place in the wizarding world.
It also allows for a deeper exploration of the Harry Potter universe's magic system. Maybe there's a magical accident or a spell that could cause Harry to be like Riddle. Fanfiction writers can play with these ideas and create unique stories. For example, they can explore how the wizarding community would react to a Harry who is more like Riddle. It adds a new layer of complexity to the story.